package morning.cat.service.impl;


import morning.cat.entity.User;
import morning.cat.service.UserService;

public class UserServiceImpl implements UserService {

    @Override
    public String sayHelloToUser(User user) {
        if (user == null) {
            System.out.println("user is null");
        }
        return "hello " + user.getName();
    }
}
